2 years ago

!!!!!!!!!!!HELPPPP!!!!!!!!!!! IT'S A TEST!

1 answer:

3 0

A. Chemical reaction. When the wood burns, new substances form (like ash) and they cannot be changed.

B. Exothermic. When combustion (burning) takes place it is an exothermic reaction. Energy is being released to its surroundings.

hope this helps!

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